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Naddik [55]
3 years ago
12

Solve the equation below r+3=3(r-5)

Mathematics
2 answers:
zubka84 [21]3 years ago
5 0

Answer:

r = 9

Step-by-step explanation:

r + 3 =3 (r - 5)

1. remove brackets and simplify

r + 3 = 3r − 15

2. Subtract 3r from both sides

r + 3 <u><em>−3r</em></u> = 3r −15 <u><em>−3r</em></u>

−2r + 3 = −15

3. Subtract 3 from both sides.

−2r + 3 <em><u>−3</u></em> = −15 <em><u>−3</u></em>

−2r = −18

4. Divide both sides by -2.

−2r = −18

___   ___

-2    =  -2

r = 9

<em><u>Please mark as brainliest if answer is right </u></em>

Have a great day, be safe and healthy  

Thank u  

XD

marin [14]3 years ago
3 0

Answer:

r = 9

Step-by-step explanation:

Given

r + 3 = 3(r - 5) ← distribute

r + 3 = 3r - 15 ( subtract r from both sides )

3 = 2r - 15 ( add 15 to both sides )

18 = 2r ( divide both sides by 2 )

9 = r

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